An open-air bath surrounded by towering trees 100 years old, and a giant tower sauna
Saitama Tokorozawa City
"Tokorozawa Onsen Yurakunosato" is a lush day-use hot spring facility in Tokorozawa City, Saitama Prefecture. On the grounds, century-old zelkova and oak trees line the property, creating an open-air rotenburo where you can enjoy a refreshing bath filled with negative ions. The sauna is an impressive seven-tier tower style, and the steady heat from twin stoves wraps your whole body, encouraging a satisfying sweat. Because the temperature can be adjusted by choosing different tiers, from beginners to seasoned sauna-goers can find the heat level they like. Together with the natural hot spring water that gushes from 1,700m underground and the high-concentration carbonated spring, this urban oasis lets you reset both body and mind while feeling the nature of Musashino.
TypeNatural Hot Spring
A sodium-calcium chloride spring that gushes from 1,700m underground. The colorless, transparent water has a slight salty taste, and its excellent warming and moisturizing effects help leave the skin smooth. In the open-air source-fed rock bath, you can enjoy the rich minerals just as they are, together with a nature-rich landscape surrounded by towering trees.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity35people
A massive seven-tier dry sauna that stands out for its overwhelming height. With a twin-stove setup featuring two far-infrared heaters, you can feel pleasant heat no matter where you sit in the room. From the powerful heat on the top tier to the milder temperature on the lower tiers, the seating position can be chosen to match your condition. You can relax and sweat in the spacious room while watching TV.
Sauna TypeSteam Sauna
Stove Typeconvection
Capacity5people
A low-temperature sauna with a mild setting, wrapped in plenty of steam. It places little strain on the body, allowing you to warm up thoroughly and steadily from the core. The women’s bath uses a salt sauna setup, which is expected to help leave the skin smooth and refreshed with a detox effect.
Water QualityTap Water
Capacity4people
A crisp, cold cold plunge bath that instantly tightens your body after sauna use. It has depth, so you can immerse yourself all the way to the shoulders and enjoy a refreshing cooldown. The water is always kept clear and cool, leading you to blissful totonou through smooth alternating hot and cold bathing from the tower sauna.
Closed Days: None
〒359-0001 Saitama Prefecture, Tokorozawa City, Shimotomi 604
Gender Access
Gender Separated
Curated by an expert who visits onsen and sauna facilities every day and has explored 300+ locations — only facilities confirmed to be truly exceptional are featured.
Learn more
An open-air bath surrounded by towering trees 100 years old, and a giant tower sauna
Saitama Tokorozawa City
"Tokorozawa Onsen Yurakunosato" is a lush day-use hot spring facility in Tokorozawa City, Saitama Prefecture. On the grounds, century-old zelkova and oak trees line the property, creating an open-air rotenburo where you can enjoy a refreshing bath filled with negative ions. The sauna is an impressive seven-tier tower style, and the steady heat from twin stoves wraps your whole body, encouraging a satisfying sweat. Because the temperature can be adjusted by choosing different tiers, from beginners to seasoned sauna-goers can find the heat level they like. Together with the natural hot spring water that gushes from 1,700m underground and the high-concentration carbonated spring, this urban oasis lets you reset both body and mind while feeling the nature of Musashino.
TypeNatural Hot Spring
A sodium-calcium chloride spring that gushes from 1,700m underground. The colorless, transparent water has a slight salty taste, and its excellent warming and moisturizing effects help leave the skin smooth. In the open-air source-fed rock bath, you can enjoy the rich minerals just as they are, together with a nature-rich landscape surrounded by towering trees.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity35people
A massive seven-tier dry sauna that stands out for its overwhelming height. With a twin-stove setup featuring two far-infrared heaters, you can feel pleasant heat no matter where you sit in the room. From the powerful heat on the top tier to the milder temperature on the lower tiers, the seating position can be chosen to match your condition. You can relax and sweat in the spacious room while watching TV.
Sauna TypeSteam Sauna
Stove Typeconvection
Capacity5people
A low-temperature sauna with a mild setting, wrapped in plenty of steam. It places little strain on the body, allowing you to warm up thoroughly and steadily from the core. The women’s bath uses a salt sauna setup, which is expected to help leave the skin smooth and refreshed with a detox effect.
Water QualityTap Water
Capacity4people
A crisp, cold cold plunge bath that instantly tightens your body after sauna use. It has depth, so you can immerse yourself all the way to the shoulders and enjoy a refreshing cooldown. The water is always kept clear and cool, leading you to blissful totonou through smooth alternating hot and cold bathing from the tower sauna.
Closed Days: None
〒359-0001 Saitama Prefecture, Tokorozawa City, Shimotomi 604
Gender Access
Gender Separated
Curated by an expert who visits onsen and sauna facilities every day and has explored 300+ locations — only facilities confirmed to be truly exceptional are featured.
Learn more